Questions and Answers
The network administrator is configuring a network attached storage (NAS) appliance. What file sharing protocol should the administrator use to allow access to Windows, Linux, and Apple macOS clients?
Server Message Block (SMB)
A client wishes to upload and download a few files from the network server. The client wants to upload some of the files to a website. Which ports would establish an active connection? (Select all that apply.)
TCP/20
As an alternative to static configuration, wired and wireless hosts can receive their IP address, subnet mask, default gateway, and DNS server addresses from which protocol? (Select all that apply.)
DHCP
Authentication, authorization, and accounting (AAA) allows switches and access points to hold directory information to authenticate clients as they connect to the network. Which protocol would the AAA server use if it wanted to communicate with the directory service?
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What network protocol is obsolete and should be disabled on most networks as it poses a significant security risk?
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A client wishes to download some files from home to upload onto the company's website. Which ports would establish a connection for the client to achieve this? (Select all that apply.)
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In addition to Remote Desktop, which of the following protocols can an administrator use for remote access administration? (Select all that apply.)
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During a company meeting, a technician scribbled some notes about a firewall configuration on a whiteboard. The technician has listed only the port numbers 25 and 587. What is the purpose of these protocols that use these ports?
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The IT department is setting up for outsourced management of their client firms. The IT department has asked a server administrator to configure a Linux server and accept remote terminal connections from clients without using passwords, along with encrypted terminal emulations. How does the administrator set up this access? (Select all that apply.)
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An HTTPS application is secured using the SSL/TLS protocol but should use a different port for unencrypted HTTP. Which port should unencrypted HTTP use?
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A client connects to an IMAP server over port TCP/143, but this port is unsecure. Instead, the client wants a secure connection established using Transport Layer Security (TLS). What is the default port for the secure POP3/IMAP?
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When advising a company on configuring systems, the administrator wants to provide better information about network device status and how to monitor them in a client manual. Which of the following is the correct protocol that maintains a database containing statistics related to the activity of devices for review?
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A top-level domain (i.e., .com) falsely represents the top of the Domain Name System (DNS) hierarchy. Why is this considered false?
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Study Notes
File Sharing Protocol
- When configuring a NAS appliance, the file sharing protocol to use for access to Windows, Linux, and Apple macOS clients is SMB.
Ports for Active Connection
- FTP (20 and 21) and HTTP (80) are the ports that establish an active connection for uploading and downloading files from a network server to a website.
Dynamic IP Address Configuration
- DHCP is an alternative to static configuration, allowing hosts to receive IP addresses, subnet masks, default gateways, and DNS server addresses dynamically.
AAA Server Communication
- An AAA server would use LDAP to communicate with the directory service.
Obsolete Protocol
- NetBIOS is a network protocol that is obsolete and should be disabled on most networks due to significant security risks.
Ports for File Upload
- FTP (20 and 21) is the port that establishes a connection for uploading files from a client to a company's website.
Remote Access Administration
- SSH and Telnet are protocols that can be used for remote access administration, in addition to Remote Desktop.
Firewall Configuration
- SMTP is the protocol that uses ports 25 and 587, and is used for email communication.
Remote Terminal Connections
- An administrator can set up remote terminal connections without using passwords, along with encrypted terminal emulations, by using SSH with public key authentication.
Unencrypted HTTP Port
- Port 80 is the default port for unencrypted HTTP.
Secure POP3/IMAP
- Port 993 is the default port for secure POP3/IMAP using SSL/TLS.
Network Device Status Monitoring
- SNMP is the protocol that maintains a database containing statistics related to the activity of devices for review.
Domain Name System (DNS) Hierarchy
- The top-level domain (e.g., .com) does not represent the top of the DNS hierarchy, as root domains (.root) are the top level of the DNS hierarchy.
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